Grain Systems PNEG-236 - Manual (Page 10)

10 PNEG-236 Humidistat-Thermostat
4. Installation of Top Dry High-Low Thermostat
The High-Low thermostat is designed for use with the GSI top dry crop dryer units. It comes with one
thermostat which is adjustable and cycles the heater from high to low flame. The High-Low thermostat
also comes with a thermometer for monitoring the plenum temperature.
Installation Instructions
1. Locate the mounting position of the thermostat as shown in Figure 4A .
2. Use the template on Page 20 . With these instructions, drill only the holes necessary for the
particular model.
3. Apply rope caulk to sides and top of plastic housing. Leave bottom open to let moisture escape.
4. Secure housing to sidewall using self-drilling screws supplied. Be careful not to overtighten.
Overtightening may cause the housing to crack.
5. Connect the black and white wires to the terminals marked bin High-Limit (3
rd
and 4
th
terminal
bottom left hand terminal strip) on fan and heater safety circuit board.
6. Connect the green and red wires to the terminals marked cycle (8
th
and 6
th
terminal bottom left hand
terminal strip) on fan and heater safety circuit board.
Figure 4A Placement of the Top Dry High-Low Thermostat